Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753455Ab2KGHHw (ORCPT ); Wed, 7 Nov 2012 02:07:52 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:54031 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752585Ab2KGHHp (ORCPT ); Wed, 7 Nov 2012 02:07:45 -0500 From: "Patil, Rachna" To: , , , , CC: Rob Landley , Grant Likely , Rob Herring , Samuel Ortiz , Dmitry Torokhov , Dmitry Torokhov , Jonathan Cameron , "Patil, Rachna" Subject: [PATCH RESEND 5/7] MFD: ti_am335x_tscadc: Add DT support Date: Wed, 7 Nov 2012 12:22:02 +0530 Message-ID: <1352271124-5513-6-git-send-email-rachna@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1352271124-5513-1-git-send-email-rachna@ti.com> References: <1352271124-5513-1-git-send-email-rachna@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2550 Lines: 82 Make changes to add DT support in the MFD core driver. Signed-off-by: Patil, Rachna --- drivers/mfd/ti_am335x_tscadc.c | 28 +++++++++++++++++++++++----- 1 files changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 8ca3bf0..07b7788 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -22,6 +22,8 @@ #include #include #include +#include +#include #include #include @@ -64,20 +66,31 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) struct resource *res; struct clk *clk; struct mfd_tscadc_board *pdata = pdev->dev.platform_data; + struct device_node *node = pdev->dev.of_node; struct mfd_cell *cell; int err, ctrl; int clk_value, clock_rate; - int tsc_wires, adc_channels = 0, total_channels; + int tsc_wires = 0, adc_channels = 0, total_channels; - if (!pdata) { + if (!pdata && !pdev->dev.of_node) { dev_err(&pdev->dev, "Could not find platform data\n"); return -EINVAL; } - if (pdata->adc_init) - adc_channels = pdata->adc_init->adc_channels; + if (pdev->dev.of_node) { + node = of_find_node_by_name(pdev->dev.of_node, "tsc"); + of_property_read_u32(node, "wires", &tsc_wires); + + node = of_find_node_by_name(pdev->dev.of_node, "adc"); + of_property_read_u32(node, "adc-channels", &adc_channels); + } else { + if (pdata->tsc_init) + tsc_wires = pdata->tsc_init->wires; + + if (pdata->adc_init) + adc_channels = pdata->adc_init->adc_channels; + } - tsc_wires = pdata->tsc_init->wires; total_channels = tsc_wires + adc_channels; if (total_channels > 8) { @@ -256,11 +269,16 @@ static const struct dev_pm_ops tscadc_pm_ops = { #define TSCADC_PM_OPS NULL #endif +static const struct of_device_id ti_tscadc_dt_ids[] = { + { .compatible = "ti,ti-tscadc", }, +}; + static struct platform_driver ti_tscadc_driver = { .driver = { .name = "ti_tscadc", .owner = THIS_MODULE, .pm = TSCADC_PM_OPS, + .of_match_table = of_match_ptr(ti_tscadc_dt_ids), }, .probe = ti_tscadc_probe, .remove = __devexit_p(ti_tscadc_remove), -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/